sfrP0=0x80;/*PORT0LATCH*/sfrSP=0x81;/*STACKPOINTER*/sfrDPL=0x82;/*DATAPOINTERLOW*/sfrDPH=0x83;/*DATAPOINTERHIGH*/sfrPCON=0x87;/*POWERCONTROL*/sfrTCON=0x88;/*TIMER/COUNTERCONTROL*/sfrTMOD=0x89;/*TIMER/COUNTERM